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https://issues.apache.org/jira/browse/HADOOP-17657?focusedWorklogId=589667&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-589667
 ]

ASF GitHub Bot logged work on HADOOP-17657:
-------------------------------------------

                Author: ASF GitHub Bot
            Created on: 27/Apr/21 10:32
            Start Date: 27/Apr/21 10:32
    Worklog Time Spent: 10m 
      Work Description: hadoop-yetus commented on pull request #2949:
URL: https://github.com/apache/hadoop/pull/2949#issuecomment-827500252


   :broken_heart: **-1 overall**
   
   
   
   
   
   
   | Vote | Subsystem | Runtime |  Logfile | Comment |
   |:----:|----------:|--------:|:--------:|:-------:|
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   |||| _ Prechecks _ |
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any @author tags.  |
   | +1 :green_heart: |  test4tests  |   0m  0s |  |  The patch appears to 
include 1 new or modified test files.  |
   |||| _ trunk Compile Tests _ |
   | +1 :green_heart: |  mvninstall  |  34m 22s |  |  trunk passed  |
   | +1 :green_heart: |  compile  |  20m 53s |  |  trunk passed with JDK 
Ubuntu-11.0.10+9-Ubuntu-0ubuntu1.20.04  |
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Private Build-1.8.0_282-8u282-b08-0ubuntu1~20.04-b08  |
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Ubuntu-11.0.10+9-Ubuntu-0ubuntu1.20.04  |
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Private Build-1.8.0_282-8u282-b08-0ubuntu1~20.04-b08  |
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   | +1 :green_heart: |  shadedclient  |  15m 39s |  |  branch has no errors 
when building and testing our client artifacts.  |
   |||| _ Patch Compile Tests _ |
   | +1 :green_heart: |  mvninstall  |   0m 53s |  |  the patch passed  |
   | +1 :green_heart: |  compile  |  20m 46s |  |  the patch passed with JDK 
Ubuntu-11.0.10+9-Ubuntu-0ubuntu1.20.04  |
   | -1 :x: |  javac  |  20m 46s | 
[/results-compile-javac-root-jdkUbuntu-11.0.10+9-Ubuntu-0ubuntu1.20.04.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2949/5/artifact/out/results-compile-javac-root-jdkUbuntu-11.0.10+9-Ubuntu-0ubuntu1.20.04.txt)
 |  root-jdkUbuntu-11.0.10+9-Ubuntu-0ubuntu1.20.04 with JDK 
Ubuntu-11.0.10+9-Ubuntu-0ubuntu1.20.04 generated 4 new + 1985 unchanged - 0 
fixed = 1989 total (was 1985)  |
   | +1 :green_heart: |  compile  |  18m 51s |  |  the patch passed with JDK 
Private Build-1.8.0_282-8u282-b08-0ubuntu1~20.04-b08  |
   | -1 :x: |  javac  |  18m 51s | 
[/results-compile-javac-root-jdkPrivateBuild-1.8.0_282-8u282-b08-0ubuntu1~20.04-b08.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2949/5/artifact/out/results-compile-javac-root-jdkPrivateBuild-1.8.0_282-8u282-b08-0ubuntu1~20.04-b08.txt)
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Private Build-1.8.0_282-8u282-b08-0ubuntu1~20.04-b08 generated 4 new + 1887 
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   | -0 :warning: |  checkstyle  |   1m  2s | 
[/results-checkstyle-hadoop-common-project_hadoop-common.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2949/5/artifact/out/results-checkstyle-hadoop-common-project_hadoop-common.txt)
 |  hadoop-common-project/hadoop-common: The patch generated 3 new + 352 
unchanged - 0 fixed = 355 total (was 352)  |
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Ubuntu-11.0.10+9-Ubuntu-0ubuntu1.20.04  |
   | +1 :green_heart: |  javadoc  |   1m 56s |  |  the patch passed with JDK 
Private Build-1.8.0_282-8u282-b08-0ubuntu1~20.04-b08  |
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when building and testing our client artifacts.  |
   |||| _ Other Tests _ |
   | +1 :green_heart: |  unit  |  19m 10s |  |  hadoop-common in the patch 
passed.  |
   | +1 :green_heart: |  asflicense  |   0m 55s |  |  The patch does not 
generate ASF License warnings.  |
   |  |   | 187m 33s |  |  |
   
   
   | Subsystem | Report/Notes |
   |----------:|:-------------|
   | Docker | ClientAPI=1.41 ServerAPI=1.41 base: 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2949/5/artifact/out/Dockerfile
 |
   | GITHUB PR | https://github.com/apache/hadoop/pull/2949 |
   | JIRA Issue | HADOOP-17657 |
   | Optional Tests | dupname asflicense compile javac javadoc mvninstall 
mvnsite unit shadedclient spotbugs checkstyle codespell |
   | uname | Linux 4853216b38db 4.15.0-58-generic #64-Ubuntu SMP Tue Aug 6 
11:12:41 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux |
   | Build tool | maven |
   | Personality | dev-support/bin/hadoop.sh |
   | git revision | trunk / e8df5a078825068757723a8f6541eef5ec60bc04 |
   | Default Java | Private Build-1.8.0_282-8u282-b08-0ubuntu1~20.04-b08 |
   | Multi-JDK versions | 
/usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.10+9-Ubuntu-0ubuntu1.20.04 
/usr/lib/jvm/java-8-openjdk-amd64:Private 
Build-1.8.0_282-8u282-b08-0ubuntu1~20.04-b08 |
   |  Test Results | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2949/5/testReport/ |
   | Max. process+thread count | 3158 (vs. ulimit of 5500) |
   | modules | C: hadoop-common-project/hadoop-common U: 
hadoop-common-project/hadoop-common |
   | Console output | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2949/5/console |
   | versions | git=2.25.1 maven=3.6.3 spotbugs=4.2.2 |
   | Powered by | Apache Yetus 0.14.0-SNAPSHOT https://yetus.apache.org |
   
   
   This message was automatically generated.
   
   


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Issue Time Tracking
-------------------

    Worklog Id:     (was: 589667)
    Time Spent: 1h 40m  (was: 1.5h)

> SequeneFile.Writer should implement StreamCapabilities
> ------------------------------------------------------
>
>                 Key: HADOOP-17657
>                 URL: https://issues.apache.org/jira/browse/HADOOP-17657
>             Project: Hadoop Common
>          Issue Type: Bug
>            Reporter: Kishen Das
>            Assignee: Kishen Das
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 1h 40m
>  Remaining Estimate: 0h
>
> Following exception is thrown whenever we invoke ProtoMessageWriter.hflush on 
> S3 from Tez, which internally calls 
> org.apache.hadoop.io.SequenceFile$Writer.hflush ->  org.apache.hadoop.fs.FS 
> DataOutputStream.hflush -> S3ABlockOutputStream.hflush which is not 
> implemented and throws java.lang.UnsupportedOperationException. 
> bdffe22d96ae [mdc@18060 class="yarn.YarnUncaughtExceptionHandler" 
> level="ERROR" thread="HistoryEventHandlingThread"] Thread 
> Thread[HistoryEventHandlingThread, 5,main] threw an 
> Exception.^Mjava.lang.UnsupportedOperationException: S3A streams are not 
> Syncable^M at 
> org.apache.hadoop.fs.s3a.S3ABlockOutputStream.hflush(S3ABlockOutputStream.java:657)^M
>  at org.apache.hadoop.fs.FS 
> DataOutputStream.hflush(FSDataOutputStream.java:136)^M at 
> org.apache.hadoop.io.SequenceFile$Writer.hflush(SequenceFile.java:1367)^M at 
> org.apache.tez.dag.history.logging.proto.ProtoMessageWriter.hflush(ProtoMessageWr
>  iter.java:64)^M at 
> org.apache.tez.dag.history.logging.proto.ProtoHistoryLoggingService.finishCurrentDag(ProtoHistoryLoggingService.java:239)^M
>  at org.apache.tez.dag.history.logging.proto.ProtoHistoryLoggingService.han 
> dleEvent(ProtoHistoryLoggingService.java:198)^M at 
> org.apache.tez.dag.history.logging.proto.ProtoHistoryLoggingService.loop(ProtoHistoryLoggingService.java:153)^M
>  at java.lang.Thread.run(Thread.java:748)^M
> In order to fix this issue we should implement StreamCapabilities in 
> SequenceFile.Writer. Also, we should fall back to flush(), if hflush() is not 
> supported. 



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